MAX3269CUB

Overview

The MAX3269CUB+ is a 2.5Gbps limiting amplifier designed for Gigabit Ethernet and Fibre Channel optical receiver systems. It operates from +3.0V to +5.5V supplies and accepts wide input voltage ranges while providing constant-level outputs with controlled edge speeds. The device features standards-compliant positive-referenced emitter-coupled logic (PECL) data outputs and is housed in a tiny 10-pin µMAX package, making it suitable for small-form-factor receivers.

Feature Summary

• Provides standards-compliant PECL data outputs
• Includes RMS power detectors with programmable loss-of-signal indication
• Features an optional squelch function that mutes the data output signal when input voltage falls below a programmable threshold

Applications

• Gigabit Ethernet Optical Receivers
• Fibre Channel Optical Receivers
• System Interconnect
• ATM Optical Receivers

Procurement Notes

Verify the component is the lead-free version indicated by the plus suffix. Confirm the package type matches the 10-pin µMAX specification. Ensure the operating temperature range aligns with the commercial grade requirements of the application design.

Selection Notes

Select this model for applications requiring PECL outputs rather than CML. Verify compatibility with small-form-factor receiver designs due to the compact 10-pin µMAX package. Ensure the system supports the specified supply voltage range and data rates up to 2.5Gbps.

Part Context

This component belongs to the MAX3264/MAX3265/MAX3268/MAX3269 family of limiting amplifiers. While other variants offer CML outputs or different pin counts, the MAX3269 specifically provides PECL outputs in a 10-pin µMAX package optimized for space-constrained optical receiver modules.

Replacement Considerations

The MAX3768CUB+ is a confirmed substitute within the same family, offering identical PECL outputs and 10-pin µMAX packaging.